DUMMY SHUTTLE LOOM AND METHOD FOR CONVERTING A CONVENTIONAL LOOM TO A DUMMY SHUTTLE LOOM

摘要

Method for adapting traditional shuttle type looms, for the manufacture of fabrics with alternative weft thread take, from external feeds located in a fixed position, on both sides of the loom, using a false shuttle provided with Weft grippers actuated from the outside, at the time of the passage of said shuttle, through points external to the shed crossed by said false shuttle, characterized by having on the loom, in combination with the bobbins or other yarn reserves, located in the sides of the loom, and with braking means guiding the weft threads to points close to the two sides of the loom of the loom, of means for presenting the thread mounted on the set comprising the fulling mill and which follow the path with it of the false shuttle, between one and the other of the arrest and launch boxes: means of opening from the outside of the plier of the frame of which the false shuttle is carrier, m onted, in turn, in said set; a false shuttle comprising a weft clipper capable of catching the weft threads momentarily located at a level that intercepts the ark of the cross section of the original shuttle, replaced by said false shuttle, and associated with a moving part internal to said section and capable of acting against the aforementioned opening means, whose false shuttle also comprises a body whose cross section delimits a space that extends over its entire length and is arranged to be freely crossed by the said display means when it descends to the above level; and control means, mounted on a fixed part of the loom, capable of acting antagonistically with the elements associated with the aforementioned presentation means and the aforementioned opening means, to lower these means, with a view to causing the taking and advance of the weft yarn and obtain the abandonment of the drawn yarn, respectively, using the relative movement of the fulling mill, in the backward direction and in the whipping direction respectively, in relation to the fixed structure of the loom. (Machine-translation by Google Translate, not legally binding)